Sierra Radio Systems SIR-472 Slim DIN Rail 6A Relay
SKU Part Number: SIR-472
The Sierra Radio Systems SIR-472 is a slim DIN rail mounted 6A relay for use with Sierra Station Controller systems and other suitable low-voltage...
Read More
£12.95
Availability: In stock
call

Seen this product cheaper elsewhere?

Call 0345 2300 599

The Sierra Radio Systems SIR-472 is a slim DIN rail mounted 6A relay for use with Sierra Station Controller systems and other suitable low-voltage control installations.

It provides a compact way to add relay switching to a station control panel, remote site cabinet, repeater installation, or shack automation setup. The slim DIN rail format makes it well suited to tidy control-panel layouts where multiple relays or control modules need to be mounted in a limited amount of space.

The SIR-472 is a 12V single pole double throw relay with a maximum contact current of 6A. It also includes an LED indicator, making it easier to see relay state during installation, testing, and fault-finding.

Key Features

  • Slim DIN rail mounted relay
  • 12V relay operation
  • Single pole double throw relay arrangement
  • Maximum contact current of 6A
  • Super slim form factor
  • DIN rail mounting clip
  • LED indicator
  • Suitable for station automation and control panels
  • Useful for remote stations, repeater sites, and shack control systems
  • Ideal accessory for use with the SIR-321 GPIO module
  • Helps add additional relay switching to a Sierra Station Controller installation

Typical Uses

  • Adding relay switching to a Sierra Station Controller system
  • Remote switching of compatible low-current circuits
  • Control panel relay outputs
  • Repeater site control systems
  • Remote HF station switching
  • Shack automation projects
  • DIN rail mounted station control cabinets
  • Interfacing the SIR-321 GPIO module with external equipment
  • Switching auxiliary control lines where suitable for the relay rating

Station Controller System Role

The SIR-472 is normally used as a relay accessory within a Sierra Station Controller installation.

It is particularly suited for use with the SIR-321 General Purpose GPIO Module, where the GPIO module’s outputs can be used to operate external relays and controlled circuits. This allows the Station Controller dashboard or automation flow to control additional station equipment through a compact DIN rail relay.

Unlike Sierra DCN modules, the SIR-472 does not communicate directly over the Device Control Network. It is a relay accessory that must be wired into a suitable control circuit.

Power and Wiring Notes

The SIR-472 is a 12V relay and must be wired into a suitable control circuit.

It is not a standalone powered DCN module, and it is not supplied with a plug-in power supply. The controlling module, control wiring, power source, load wiring, and fuse protection must all be suitable for the intended installation.

Specifications

Specification Details
Brand Sierra Radio Systems
Model SIR-472
Product type Slim DIN rail relay
Relay voltage 12V
Relay arrangement Single pole double throw
Maximum contact current 6A
Mounting style DIN rail mounting clip
Indicator LED indicator
Typical controller SIR-321 General Purpose GPIO Module
Power requirement Requires suitable 12V control wiring
DCN communication No direct DCN communication

Important Note

This listing is for the SIR-472 Slim DIN Rail 6A Relay only.

SIR-321 GPIO module, SIR-310 host adapter, installation kit, DCN hub, power supply, control wiring, fuses, load wiring, station equipment, and other accessories are not included unless stated otherwise.

Please ensure that the relay, wiring, control source, load, and fuse protection are suitable for the voltage and current being switched. The relay must not be used above its rated contact current.

Shipping & Delivery

We offer UK and international delivery services, including next working day and selected weekend options for eligible orders. Available services, prices and estimated delivery times are displayed at checkout.

Delivery Information

Delivery options depend on the parcel's size, weight, contents and destination. Express and weekend services are subject to availability and cut-off times. Oversized or exceptionally heavy items may require a specialist delivery quotation.

Returns & Cancellations

To arrange a return, please contact ML&S or complete our returns form. You may also exercise your statutory right to cancel by email or another clear statement, without completing the form.

Changed Your Mind?

Under the Consumer Contracts Regulations 2013, most purchases made online or by telephone can be cancelled within 14 days of receipt.

You must notify us of your cancellation within this period and return the goods within a further 14 days.

Please handle all goods with care. Returned items must be in a resaleable condition, complete with their original packaging, and all supplied accessories.

You may inspect goods as you would in a shop. Handling beyond what is necessary to inspect them may result in a lawful deduction for diminished value.

Exceptions

Modified Equipment & Reversal Charges

Additional return conditions may apply to equipment modified at the customer's request, including wideband transmit or receive modifications.

ML&S may charge a reasonable fee to reverse physical modifications and restore the equipment to its original factory specification. Any such charge will be agreed in advance and deducted from your refund.

 

Custom-Made Cable Assemblies

Coaxial cable assemblies manufactured to a customer's specifications are excluded from the 14-day return policy and are non-refundable unless faulty.

 

Software & Labour Charges

Labour and modification charges requested by the customer are non-refundable once the work has been completed.

Computer software may only be returned under the 14-day return policy if it remains sealed and unopened.

Return Postage Charges

Customers are responsible for the direct cost of returning unwanted or incorrectly ordered goods, where permitted by law. You may arrange your own suitable return postage or use one of our optional prepaid services.

Standard Parcels

Royal Mail Return Label

£5.95

Per parcel

For eligible standard-sized parcels, subject to Royal Mail restrictions. Free collection included.

Larger Parcels

DPD Return Label

£7.95

Per parcel

For larger or heavier parcels and any shipments with batteries.

Collection Service

DPD Collection

£25.00

Per parcel

Available upon request for eligible addresses, subject to availability.

Prepaid return charges will be confirmed before booking and deducted from your refund.

These prices apply to eligible UK mainland returns. Oversized items, specialist products and returns from other destinations may require a separate quotation. Estimated return costs will be disclosed before purchase.

Faulty or Incorrectly Supplied Goods

Return postage charges do not apply to faulty, damaged or incorrectly supplied goods returned under statutory rights. ML&S will arrange a free return in these circumstances.

Refunds

Refunds are processed without undue delay following receipt and inspection of returned goods, and no later than 14 days after we receive goods returned under statutory cancellation rights.

Refunds will be issued to the original payment method. Any prepaid return postage charges or lawful deductions for diminished value will be itemised.

Warranty Terms & Conditions

New Equipment Warranty

Minimum 2-Year Warranty

All new products supplied by ML&S carry a minimum two-year warranty against manufacturing defects, excluding batteries, which are covered by separate warranty terms.

Some manufacturers provide extended warranties, such as the three-year warranty available on eligible Yaesu equipment. Any additional coverage is subject to the manufacturer's terms and conditions.

Our workshop may assess and repair faulty equipment on site or refer it to the manufacturer or an authorised service centre where necessary.

Warranty exclusions may include batteries, normal wear and tear, accidental damage, misuse and unauthorised modifications, as specified in the applicable warranty terms.

All warranties are provided in addition to your statutory consumer rights against ML&S, which are not limited by the warranty period.

International Returns & Warranty

Unless otherwise stated, ML&S warranty servicing is carried out in the UK. International customers must contact us before returning goods to confirm shipping and customs requirements.

International customers are responsible for return postage unless the goods are faulty and ML&S has been notified within a reasonable time.

ML&S accepts no responsibility for additional charges resulting from incorrectly completed customs documentation. Any additional duties charged to ML&S as a result will be billed to the customer before return of the goods.

Need Help With a Return?

Our team can assist with returns, postage arrangements, modifications and warranty claims.

Nothing in these terms excludes or limits your statutory consumer rights.